Talk Morgan Forums Community Vehicle Talk (non-Morgan) Braking Bad

The title is not intended to mislead to a TV series but describes a strange situation that happened to me this afternoon: I drove with my Tintop on a straight road with approx. 50 mph when the car suddenly braked sharply. The electronic "pre sense" warning light flashed and the car got nearly to a stop. Than all went back to normal and the car continued as nothing had ever happened.
As no other drove behind me the situation did not cause problems to anyone but to my blood pressure.

It seems that wether a sensor or the software had a problem and recognized an obstacle on the road (that was not there)
A visit to the car service station and reading out the car computer did not show any faulty systems.

Now please don't tell me that autonomous driving would be possible without any problems.

That sounds damn dangerous and most alarming Hannes, it would be helpful for others by way of warning if you named your "practical car for use in real life" maybe

Did you have a speed limiter engaged? This is a dangerous piece of kit as it is prone to picking up speed limits on adjacent roads and bridges and "adjusts" you speed accordingly. It happened to me doing 70 mph on a dual carriageway. On going under a bridge which carried a road with a 30 mph limit the car autonomously braked extremely sharply. It was fortunate there was nobody behind me.

The EU is going to make this mandatory on new cars I understand. Whether or not we remain in EU the UK will have to comply or risk being unable to sell cars to Europe.

Richard, you are right: this happened in an Audi Q5 from 2017
The "pre sense" setting is supposed to protect from rear end collisions when driving too fast in direction of a slower vehicle.
Under normal conditions the system emits a warning tone and uses the brakes when the situation requires action

@ John: no speed limiter installed, just a traffic sign reader

Hannes, like all this technology it is great when it works but like us it is fallible at times.

One of my SIL's works for Ford in future product development and always has the latest car with all the tricks, one thing it fails dismally at is the auto dipping headlamps and as it has LED one's I think he often ends up blinding oncoming cars unless he intervenes. I can foresee head on collisions arising due to this fault and tell him so as feedback.

Like the other poster his car has road sign recognition on it and makes occasional bad calls and brakes sharply for no apparent reason, I guess it's only a matter of time before it ends up in a rear end shunt.

Maybe a bug flew really close and fooled the sensors?

We checked all the sensors, no dead bugs there.
If a single bug could fool the system I would say the system has got a big bug!

Travelling for work in rural NZ at the moment and came round a bend in the dark with mist on the road and two goats ran out on the road in front of me, locked up straight away and managed to miss them both, (by the hair on their Chinny chin ) the ABS not that quick , result good for the goats hard on my tyres and blood pressure, I wonder if one of those sensors would have picked them up - I doubt it given the speed and distance involved.

Same happens several times with my daylydriver.

Last tim two days ago: There was a cyclist with a large bag driving on the pavement....
Skoda did not find any faults..

That are "modern times"..

And people wonder why I hate modern cars??????